Driving mechanism for lathes.



W. SADOSKE.

DRIVIN G MECHANISM FOR LATHES.

APPLICATION FILED MAY 0| I918- LQ9%95% Patented; Feb. 18, 1919.

fit; g; k VVINVENTOR ATTORNEY lit? OFFICE.

WILLIAM SADOSKE, OF SPRING-FIELD, OHIO.

DRIVING- MECHANISM non reruns.

: Specification of Letters Patent.

Patented Feb. 18, 19 19.

Application filed May 10, 1918. Serial No. 233,633.

To all whom it may concern:

Be it known that I, WILLIAM SADOSKE, a citizen of Russia, residing at Springfield, county of Clark, and State of Ohio, have invented certain new and useful Improvements in Driving Mechanism for Lathes, of which the following is a specification.

This invention relates to improvements in lathes and particularly to those adapted to be pedally operated and of the types used by amateurs.

The principal object of the invention is to provide a foot lathe with means whereby it can be operated by power without any change Whatever in its construction.

A further object is to provide a simple and inexpensive lathe, with means by which the changes may be easily effected.

These and other, like objects are attained by the novel construction and combination of parts hereinafter described and shown in the accompanying drawing, forming a material part of this disclosure, and in which Figure 1 is a front elevational view show ing a lathe made in accordance with the invention.

Fig. 2 is a vertical sectional view taken on line 2-2 of Fig. 1, and

Fig. 3 is a fragmentary front elevational view similar to Fig. 1 but showing the lathe arranged to be driven by power.

A pair of columns respectively and 11, act as supports for the bed 12, which is of the usual type of construction and has secured to the shears or tracks 14, the head stock 15, having the bearings 17 and 18, in which the spindle 20 is rotatably mounted, and mounted on the spindle between housings 17 and 18, is a cone pulley 22, by which a work holding device, as a chuck 24 is operated in the usual manner.

Similarly a foot stock 26 is slidably arranged upon the shears 14, while a carriage 28 is slidable longitudinally on the shears, the same containing a tool rest 29. The cone is driven by a belt 30 from a similar but larger cone 31, mounted upon a shaft 32, journaled at one end in a bearing formed in the column 10', the other outer the el-te'ft in housed in the bear ing 33, formed With a depending bracket 34, attached to the underside of the bed 12.

Secured upon the shaft 32, exterior of the bearing 33, is a pulley adapted to be driven by a belt from any convenient source of power and set eccentrically in the slde of the pulley is a removably engageable stud 38, acting as a pivot for the upper sectlon 40, of a pitman, having a joint 41, connecting with the lower section 42, which in turn is pivoted upon the pin 43, fixed in a lug 44 raised from the upper side of a platform 45, adapted to be actuated by the feet of an operator, the platform being mounted upon a longitudinally disposed bar 46, supported by the columns 10 and 11.

When the machine is to be operated by the feet, as shown in Fig. 1, the stud 38 is engaged in the side of the pulley 35 and the pedal operated in the usual manner, conveying motion to the shaft 32, and through the belt. 30 to the cone 22, while, if it be desired to operate the lathe by power, the stud 38 is removed, the pitman link 40 turned downward alongside the lower section 42, so that the pedal is disconnected from the pulley 35, and a belt placed thereon from any convenient source of power.

Having thus described my invention what I claim as new and desire to secure by Letters Patent, is. i e

1. In a convertible lathe, the combination with a bed, a pair of supporting pedestals, a head on said bed, a spindle in said head, a cone on said spindle, a spindle supported below said bed, parallel with the spindle in said head, a driving cone thereon, a belt connecting said cones, a pedal pivoted be low said bed, a pulley mounted on said second named spindle, a stud removably engaged in the side of said pulley, and a sectional pitman connecting said pedal and said stud.

2. In a foot lathe, the combination with a bed, of a bracket extending downward from said bed, a shaft supported in said bracket, means for transmitting rotary mo tion to said shaft, a driving pulley fixed on said shaft eXteriorly of said bracket, a stud engaged eccentrically in theside of said pulley, a hinged pedal? and. a see tional pitman between said pedal and said ley, eccentric to its axis, a hingedly engaged stud whereby rotary motion may be transpedal, and hinged connections between said 10 mitted to said shaft. y Y pedal and saidstud whereby said shaft may 3.111" a convertible foot lathe, a shaft by be operated. j i

which said lathe may be actuated, a pulley In testimb'ny 'Wheieof I have afiixed my fixed on said shaft, said pulley being adaptsignature.

ed to be driven by a belt connection, a stud removably engaged in the side of said pul- WILLIAM SADOSKE.

Oppies ofv this patent may be obtained for five cents each, by addressing the Commissioner of Patenti. Washington, D. O. 

